package com.kabigon.multiverse.component;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.kabigon.multiverse.common.api.ResultData;
import lombok.SneakyThrows;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.MethodParameter;
import org.springframework.http.MediaType;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.server.ServerHttpRequest;
import org.springframework.http.server.ServerHttpResponse;
import org.springframework.web.bind.annotation.RestControllerAdvice;
import org.springframework.web.servlet.mvc.method.annotation.ResponseBodyAdvice;

import javax.annotation.Resource;

/**
 * @author xu.biao
 * @version v1.0
 * @Package com.kabigon.multiverse.component
 * @data 2022/2/17 22:00
 */
@RestControllerAdvice
public class ResponseAdvice implements ResponseBodyAdvice<Object> {

    @Resource
    private ObjectMapper objectMapper;

    /**
     * 是否支持advice功能
     * true 支持，false 不支持
     *
     * @param methodParameter
     * @param aClass
     * @return
     */
    @Override
    public boolean supports(MethodParameter methodParameter, Class<? extends HttpMessageConverter<?>> aClass) {
        return true;
    }

    /**
     * 对返回的数据进行处理
     *
     * @return {@link Object}
     */
    @SneakyThrows
    @Override
    public Object beforeBodyWrite(Object o, MethodParameter methodParameter, MediaType mediaType, Class<? extends HttpMessageConverter<?>> aClass, ServerHttpRequest serverHttpRequest, ServerHttpResponse serverHttpResponse) {
        if (o instanceof String) {
            return objectMapper.writeValueAsString(ResultData.success(o));
        }

        if (o instanceof ResultData) {
            return o;
        }


        return ResultData.success(o);
    }
}
